LT4256-2CS8 datasheet(3/16 Pages) LINER

3 / 16 page

LT4256-1/LT4256-2

425612f

tPHLUV

UV Low to GATE Low

1.7

µs

tPLHUV

UV High to GATE High

CGATE = 0

µs

tPHLFB

FB Low to PWRGD Low

0.8

µs

tPLHFB

FB High to PWRGD High

3.2

µs

tPHLSENSE

(VCC – VSENSE) High to GATE Low

VCC – VSENSE = 275mV

µs

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 48V unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: An internal clamp limits the GATE pin to a minimum of 10V above

VCC. Driving this pin to a voltage beyond the clamp voltage may damage

the part.

TYPICAL PERFOR A CE CHARACTERISTICS

ICC vs Temperature

PWRGD Thresholds

vs Temperature

PWRGD Output Voltage

vs IPWRGD

ICC vs VCC

UV Thresholds vs Temperature

SENSE Pin Regulation Voltage

vs Temperature

TEMPERATURE (

°C)

–50

3.5

3.6

3.7

3.8

3.9

4.1

–25

025

4256 G01

100

4.0

H-L THRESHOLD

L-H THRESHOLD

TEMPERATURE (

°C)

4256 G02

FB = 0V

FB > 2V

–50

–25

255075

100

VCC (V)

2.0

2.5

3.5

4256 G03

1.5

1.0

0.5

3.0

TEMPERATURE (

°C)

0.5

1.0

1.5

2.5

4256 G04

2.0

VCC = 48V

–50

–25

255075

100

TEMPERATURE (

°C)

3.9

4.0

4.1

4.2

4.3

4.5

4256 G05

4.4

H-L THRESHOLD

L-H THRESHOLD

–50

–25

255075

100

IPWRGD (mA)

4256 G06

Specifications are at TA = 25°C unless

otherwise noted.

LT4256-2CS8 Datasheet(PDF) 3 Page - Linear Technology

LT4256-2CS8 Datasheet(HTML) 3 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL